生物降解材料聚乳酸的改性  

Modification of biodegradable material poly(lactic acid)

作　　者：汪朝阳[1] 赵耀明[2] 

机构地区：[1]华南师范大学化学系,广州610631 [2]华南理工大学材料学院,广州510640

出　　处：《合成树脂及塑料》2004年第5期79-81,共3页China Synthetic Resin and Plastics

基　　金：高等学校博士学科点专项科研基金资助课(98056110);广东省自然科学基金资助项目(980504)和(020885)

摘　　要：为降低聚乳酸(PLA)的成本、改善其亲水性、提高其力学性能和加工性能以及利用PLA改性其他高 分子,可使用基体扩链、表面改性、接枝、增塑、共混、复合等技术对PLA类生物降解材料进行改性。乳酸直接共聚合 改性、合成PLA类材料以及从廉价天然资源出发追求PLA改性的工业化是未来主要发展方向。The technologies of chain extension, surface modification, grafting, plasticization, blending and compounding were used on the purpose of reducing production cost of poly(lactic acid) (PLA), improving its hy-drophilicity and raising its mechanical properties and processability. PLA was also taken as a modifier for other polymers. Direct copolymerization of lactic acid for modification and syntheses of PLA-like materials and industrialization of the modified PLA by taking cheap natural resources as starting substance are deemed as the main development trend of PLA in the future.

关 键 词：改性 PLA 聚乳酸 生物降解材料 共混 接枝 增塑 工业化 成本 廉价 

分 类 号：TQ317[化学工程—高聚物工业]